Dutch oven cooking in driveway?

[Hawkrod 10]

I would be very leery of putting charcoal directly on a conductive surface that is placed on concrete. Where you live can have a huge impact on what may occur. If there is a high moisture content then spalling will occur as the moisture boils off. Localized heating can also cause fractures if there is a large variation in base material temperature. Basically what I am saying is that your local conditions may affect the results and I think it is best to err on the side of caution and keep the heat away from the concrete if at all possible. JMO

[ScoutNut 147]

Keep in mind that not all driveways are concrete. You can also have asphalt, which might get rather messy if it gets to hot. A crushed rock driveway would be the kind that would pose the least amount of problems.